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DeW. 0'. SANFORD. Refrigerator.

No. 223,764. Patented Jan. 20-, I880.

UNITED STATES PATENT OFFICE.

DE WITT O. SANFORD, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF OF HISRIGHT TO ELIZABETH H. SANFORD, OF SAME PLACE.

REFRIGERATOR.

SPECIFICATION forming part of Letters Patent No. 223,764, dated January.20, 1880.

Application filed July 9, 1879.

To all whom it may concern Be it known that I, DE WITT O. SANFORD, ofSt. Louis, Missouri, have made a new and useful Improvement inRefrigerating-Houses, of which the following is a full, clear, and exactdescription, reference being had to the annexed drawings, making part ofthis specification, in which Figure 1 is a horizontal section taken onthe line of Fig. 2, and Fig. 2 a vertical section taken on the line .900c of Fig. 1.

The same letters denote the same parts.

I have heretofore made and patented an improvement in refrigerators andrefrigeratinghouses based upon the principle of employing refrigeratingair -currents in a horizontal direction, and consisting, in practice,mainly of .an apartment wherein air is cooled and a seair-coolingapartment at the lower levelthereof, and, after traversingtherefrigerating-apartment, passing into the air-cooling apartment againat the upper level thereof, the current being due to the difference inweight of the colder air in the air-cooling apartment and the warmer airin the refrigerating-apartments.

In the construction used in illustrating the improvement referred to therefrigeratingapartments are arranged one above the other, forming whatmay be termed a vertical series. The present improvement is based uponthe same principle of using refrigerating-currents in a horizontaldirection; but in place of arranging the refrigerating-apartments in theform of a vertical series, they are arranged side by-side, forming ahorizontal series of refrigerating-apartments 5 and theimprovementrelates to this arrangement specially.

Referring to the drawings, A represents a refrigerator orrefrigerating-house embodying the present improvement, having theair=coo1- ing chamber B and the refrigerating apartments G O 0 G theseries consisting of any desirable number.

The first apartment, 0, is connected with the air-cooling chamber 13 bymeans of the opening or flue b, and the last apartment, O is connectedwith the air-cooling chamber by means of a flue, D, which at its lowerend connects with the apartment O and at its upper end, at 01, leadsinto the chamber B.

Suitable doors or valves 0 0 may be used to close, when desired, theexit from and entrance to the chamber B. Also, doors or partitions c c c0 may be employed to close any of the refrigerating-apartments, asdesired, and so as to direct the refrigerating-current through any ofthe refrigerating-apartments at will.

In operation, the air, after being cooled in the chamber Bsay by meansof ice in the crib E-passes thence through the opening 1) into theapartments 0 G O 0 (passing through the openings ffff at the ends of thepartitions 9 g g,) and thence, by way of the flue D, back into theair-cooling chamber.

The flue D is used because itis preferable to employ an air-coolingchamber that is higher than the refrigerating-apartments. Where the twoare of the sameheightand adjoin each other the refrigerating apartmentor apartments may open directly into the air-coolin g chamber. In suchcase the opening 1) into the refrigeratingapartment should be at or nearthe bottom of the latter, and the exit therefrom should be at or nearthe top of the refrigerating-apartment.

Either of the apartments 0 G G C may be connected directly with the flueD or the upper part of the air-cooling chamber by constructing suitableflues for that purpose-for instance, as indicated by the dotted lines inFig. 2. If desired, but one (C, for instance) apartment only may be usedfor refrigerating purposes, the remaining apartment or apartments 0 O 0serving. simply as a return-flue for passing the air back into theair-cooling chamber. In all cases suitable doors or valves, properlyadjusted to direct the air-current in the various courses as described,may be used.

The air may be allowed to pass out of the top of the flue D instead ofreturning it into the chamber 13. In such case the opening d should beclosed and the valve d opened.

Air may be admitted into the chamber B by opening the valve 12.

Two or more horizontal series of apartments, O G, can be arranged instories, one series above the other series.

2. The combination of the chamber B, apartments 0 O 0 U and flue D,substantially as described and shown.

WllTHG/SS IHY hand this 3d July, 1879.

D. W. O. SANFORD.

Witnesses:

O. D. MOODY, 0. 0. 00mm.

